Python

This is very useful Python script that will allow you to test writing to a file on a filesytem. This can be used to verify that their are no I/O read or write failures during an extend or migration of a filesystem.

#!/usr/bin/python
import time
testfile = "/dbbackup-01/testfile.txt"
for i in range(100):
print i
fo = open(testfile, "a")
fo.write('test write while the filesystem is being modified\n')
print fo.name
fo.close()
time.sleep(0.2)